pendleton



(No Model.)

J. H. PENDL ETON.

GRIP FOR CABLE RAILWAY CARS.

Patented Aug. 14, 1888.

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Unrrnn S'ra'rns Farm r Orrrcnt JOHN H. PENDLE'ION, OF BROOKLYN, ASSIGNORTO THE RAPID TRANSIT CABLE COMPANY, OF NEW YORK, F. Y.

GRlP FOR CABLE-RAlLWAY CARS.

EPECIPIC'ATION forming part of Letters Patent No. 387,911, dated August1 1888.

Application filed Deeeinher19,18$7. Serial No. 258.348. (Nonmdell To allwhom it may concern: while the shanks 2 are capable of sliding ver- Beit known that 1, JOHN H. PENDLETON, a tically in said frame.

citizen of the Uni ted States, residing at Brook- 8 are slots in thetops of the shanks 2, in

lyn, county of Kings, and State of New York, which slots fit studs orblocks 3, to which lathaveinvented cert aiu new and usei'ullmproveterare secured one arm of each of the bell- 5 meats in Grips for Uable-Railway Cars, of crank levers 12, whose other arms are secured which thefollowing is a full, clear, and exact to the draw-bar 10. Thesebell-cranksare fulspecification. erumed to the stationary shanks, sothat when My invention relates to a device which I the draw'bar isoperated in one direction they 10 have also shown and described in myapplicawill cause the sliding shanks to descend and 60 tion, Serial No.243,774, filed July 8, 1887, and bring the bevel or cam surface 11 onthe unwhich l'or gripping the traveling cable emder side of each grip incontact with the cable ployed as motive power on railways; and it 11,thus detleetingit to one side until the grips relates more particularlyto those devices emhave descended far enough to bring the wheel 15ployed on surface-roads where the cable is 10- 6 and jaw 4 below thecable, when the latter 65 cated in the conduit below the surface; and itwill spring back to its place just above said has forits object toprovide a grip which will wheel and jaw, and when operated in theopbesimple in iisoperation and at the same time posite direction will causethe sliding shanks be effective and cause little or no detriment to riseand bring the cable with them, resting to the cable. upon the wheel 6and jaw 4. 7o

\Vith these ends in view my invention con- The wheels 5 G are mounted inverticallysists in the employment of a starting or auxelongatedbearings, and the wheel 6 is pro iliary grip and a positive grip,whichare convided with springs 13 under its journals, which nected with thesame source of operation and tend to keep it to the upper extremity ofits are brought to hear at their proper time upon bearings, and by whicharrangement it will be 7 5 the cable by a continuous and simple moveseenthat the wheels 5 6 will come together on ment, which requires but verylittle care and the cable before the jaws meet, and when the attentionon the part of the operator. springs are entirely compressed the flangesl4 Myinvenliou further consists ofa grip which on the wheels 5 6 willcome in contact with is perfectly adapted for picking up the cable,shoulders 16 on the movable and stationary So as well as grasping andholding it, and in cershanks, and thus brake the revolution of the tainfeatures of novelty, which will now be wheels. The flanges on the upperwheel, 5, described with reference to the accompanying however, willcome in contact with the shouldrawings, which form a part of thisapplicaders as soon as the pressure produced by the tion, and in whichupward movement of the lower wheel is sufii- 85 Figure 1 is a sideelevation, partly in seecient to lift the wheel 5, and the revolution oftion, of the streetcar having my improved the latter will be graduallyretarded from that grips appended therefrom. Fig. 2 is a plan moment. ofthe cantruck and the grips. Fig. 3 is an It will be noted that the gripthus obtained enlarged detail section of the roller-grip,taken is giventhrough the medium of the stout spi- 90 on the line X K, Fig. 1. Fig. iis a erosssecral spring 17, coiled on the draw-bar 10, betion of thejaws of the positive grip. tween the follower 1S and the head or thecyl- 1 represents the ear truck frame or the der 19. The inertia of thelatter spring is bracket from which the grips are suspended, muchgreater than that of the others, and conand 2 2 are the shanks which gothrough the sequently the grip thus obtained is suificient to 5slot-rail 2 and carry the gripjaw i and the carry the car over levelsand ordinary grades; grip rollerd, respectively. 7 7 are also shanks butwhen the ear is to mount a steep grade or which extend downward throughthe slotted carry an extra load it is necessary to bring the rail andcarry the roller 5 and j awS; but these, positive grip to bear. This isaccomplished however, are rigidly secured to the frame 1, by continuingthe pull upon the draw-bar,

which will compress the spring 17, throw the movable shank of thepositive grip upward, and bring the jaw 4 firmly against the cable andjaw 3.

Having thus described my invention, the following is what I claim asnewtherein and desire to secure by Letters Patent:

1. The combinatiomwith two or more positive and roller or auxiliarygrips, of a draw-bar for bringing all of them to bear and having anelastic or yielding medium, whereby one grip is brought to bear beforethe other.

2. The combination, with the roller or auxiliary grip and a positivegrip, of a draw-bar for causing the grips to engage the cable,

brakes, springs between said brakes and the rollers, mechanism connectedto said brakes and draw-bar for causing them to engage with the rollers,and an elastic medium in the drawbar of greater inertia than theaforesaid springs.

3. The combination, with the roller or anxiliary grip and a positivegrip, of a draw-bar connected with the operating mechanism of said gripsand an elastic medium in said drawbar between the points of connectionwith said grips, substantially as set forth.

4. The combination, with a roller-grip and a positive grip, of adraw-bar connected with the operating mechanism of said grips, anelastic medium in said d raw-barbetween the points of connection withthe grip mechanism, and springs or cushions for holding the rollersnormally in advance of the jaws, substantially as set forth.

5. The combination, with the fixed roller 5 and jaw 3 of the slidingshanks 2, having slots 8, of a cushioned roller, 6, and a jaw, 4,secured to said shanks respectively, a draw-bar, 10, pivoted bell-crankshaving one arm secured to said bar 10 and the otherin the slots 8, andan elastic medium in said draw-bar between the said bell-cranks,substantial! y as set forth.

J. H. PENDLETON.

W'itnesses:

ALEX. H. TIERS, J can M. PHILBIN.

